Error referencing relations.sourceId

[ieuan]

I installed this plugin and activated restriction on one section with Restrict All setting selected.
When trying to load that page in the control panel there is a server error:

"SQLSTATE[42703]: Undefined column: 7 ERROR: column relations.sourceid does not exist\nLINE 3: LEFT JOIN "elements" ON elements.id = relations.sourceId\n ^\nHINT: Perhaps you meant to reference the column "relations.sourceId".\nThe SQL being executed was: SELECT EXISTS(SELECT "relations"."id"\nFROM "relations"\nLEFT JOIN "elements" ON elements.id = relations.sourceId\nWHERE "targetId"=42446)"

Trace puts the error on Line 129 of Restrict.php which is the query in side isRelated function.

I changed the leftJoin comparison string to this:
->leftJoin('{{%elements}}', 'elements.id = "relations"."sourceId"')
which resolved the issue.

CraftCMS: 4.8.11
Postgres: 15